TM 5-2410-240-23-1
0021
Table 1. Cab Troubleshooting Without Codes.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
N OT E
1. Little or No Warm Air Flow When
Heater Control Knob Is Set for
This test assumes cooling system has correct amount and type
Maximum Heating
of engine coolant. If low coolant is suspected, refer to Engine
Coolant Service (WP 0043).
This test is designed to diagnoss one fault at a time. If system
i
has multiple component failures, it may be necessary to perform
this test again after making initial repair.
Tag wiring harnesses to aid installation.
Test Step 1. Verify engine is at
Engine Temperature OK - Pro-
normal operating temperature (TM
ceed to Test Step 2.
5-2410-240-10).
Engine Temperature Not OK -
Replace water temperature regula-
tor (WP 0082).
Test Step 2.
1. Turn ignition switch and bat-
tery disconnect switch to OFF
position (TM 5-2410-240-10).
2. Connect MSD to machine (WP
3. Turn battery disconnect switch
and ignition switch to ON posi-
tion (TM 5-2410-240-10) and
select machine control ECM.
N OT E
Wait at least 30 seconds in order for diagnostic codes to become
active.
4. Monitor diagnostic codes with
Diagnostic/Event Codes - Repair
MSD (WP 0013). Check and
active code (WP 0013).
record any active diagnostic,
No Diagnostic/Event Codes -
or event codes.
Proceed to Test Step 3.
